Test your basic knowledge |

Dairy Cattle And Reproduction

Subjects : industries, dairy
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. FEED






2. Examine accessory glands - also to know how big the pelvic opening is->heritable->relates to how much dystocia that bull's daughter has






3. Hold the penis in the bulls body when not in use. releases penis before ejaculation or urination.






4. Days which have increasing daylight hours


5. Sperm production






6. (LH) causes female's egg to break (her period)






7. Hold the penis in the bulls body when not in use. releases penis before ejaculation or urination.






8. 30 hours after estrus begins






9. 1-3 days






10. 114 days






11. Animals which have many estrous periods during certain periods per year (ex: mare - ewe)






12. Castration tool that uses a band around the testicles which cuts off circulation and eventually the testicles fall off






13. When are steers and heifers weaned from bottle feeding?






14. Not under a timeline - cow can not be sold as steak






15. Duct which connects epididymis to urethra of the penis. transports sperm at ejaculation. cut to sterilize male.






16. 1. seminiferous tubules - 2. sertoli cells - 3. leydid or interstitial cells






17. 1. brain function - 2. blood flow - 3. willing female






18. Scar tissue plugs up chambers of udder






19. So when offspring are born - there is more food to be found for energy stores and fat deposits IN THE SPRING






20. Failure to have one testis (gonad) to descend






21. Pulls sperm and egg together - gets body ready for pregnany - stimulates growth cells - develops mammary glands - starts to deposit fat.






22. 336 days






23. Sperm production






24. Check feet and legs - look for masculine traits in build such as crest and muscling






25. Can survive ~7 days in cow. vast majority <48 hours






26. Duct through penis that carries sperm and urine






27. Urinary calculi.






28. Actual heat cycle (period)






29. When she is pregnant in her last trimester because she needs the energy to carry around and deliver the calf. and when the calf is born because the cow needs the fat to be deposit it into her milk for the calf's energy stores.






30. Earlier you castrate a male - the easier it is on the animal. the longer you wait - death rates increase






31. 1. need to be restricted in amt of grain - 2. no more than 70% of ration can be concentrates. 3. *Acidic acid has to be produced in order for milk synthesis to occur (30% forages)






32. Completes uterine growth initiated by estrogen and prepares the uterus for nourishment of developing embryo if pregnancy occurs - supports pregnancy by maintaining quiescent state of reproductive tract and suppresses mating behavior - prevents ovulat






33. ~305 days (altough often longer due to breeding difficulties)






34. Cleans and lubricates the urethra ahead of the sperm. (if not - the urine in the urethra has a high salt content and would cause sperm to rupture and die)






35. 10-37 (21) days






36. Look for infection - split - and rupture of the penis






37. 4-6 days






38. Castration tool which clamps down on the vans deferens. causes the sperm to not reach the penis to be ejaculated






39. Indicator of sperm production. the bigger the scrotal circumference the bigger volume of sperm because more seminal vesicles available to produce the sperm






40. Important 'landmark' during palpation






41. Head - neck - mid-piece - tail. genetic material - has an enzyme covering that allows it to penetrate the egg






42. 336 days






43. 19-23 (21) days






44. Microscopic - make sure not sterile - very few bulls are actually tested






45. 283 days






46. Start of the reproductive tract for the female. located outside of the body






47. 114 days






48. 265-285 days






49. Small tubes located at the upper ends of the uterine horns. connects uterine horn to infundibulum. passageway of the egg.






50. Cycle that lasts weeks (ovulation->hormone cycles->ovulation)